The Doctor! Amy! Weeping freaking Angels! They're all in this just-released mini-episode, titled "Good as Gold," the winning entry in the Doctor Who Script-to-Screen competition. According to BBC One:

Back in January, BBC Learning in collaboration with Blue Peter announced this year's Script to Screen competition. Launched by the Doctor himself, the challenge was simple. Schoolchildren aged 9-11 should write a short Olympics-themed script full of the usual Doctor Who ingredients including humour, drama and a touch of magic!

There was a huge response to the competition and Doctor Who's Executive Producer, Caroline Skinner, praised the quality of the entries, saying: ‘We loved reading all of the scripts from schools across the UK and the standard of entries was truly outstanding. It was a difficult, but a tremendously fun task to choose a winner and it was just brilliant to see so many children being creative in developing an adventure for the Doctor. We hope all fans enjoy this special one-off mini episode!'

The final call was ultimately made by Steven Moffat, and we think he chose wisely. (Though we do find the premise of a weeping angel that can chase somebody while being watched by thousands of Olympic Game spectators a little dubious...) [Doctor Who TV]